Patents Assigned to LEUKOCARE AG
  • Publication number: 20230225939
    Abstract: The present invention, inter alia, relates to a closed sterilized container comprising at least one carrier which is a stabilizer; and at least one biomolecule reversibly attached to the carrier, wherein said carrier partially or completely covers the attached biomolecules and wherein said at least one carrier is selected from the group consisting of (poly)peptides such as dipeptides or tripeptides, amino acids, polyalcohols, polyethyleneglycols, ionic liquids, compatible solutes, saponins and a mixture thereof. The invention also relates to methods for producing sterilized containers according to the invention and uses thereof.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 20, 2023
    Applicant: Leukocare AG
    Inventors: Jens Altrichter, Anja Breuer, Nicole Schaath, Julia Quathamer
  • Publication number: 20230165793
    Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected fro
    Type: Application
    Filed: November 21, 2022
    Publication date: June 1, 2023
    Applicant: Leukocare AG
    Inventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
  • Publication number: 20230041240
    Abstract: The invention relates to a method of reducing or preventing the adsorption of a polypeptide on a surface, or the aggregation of a polypeptide in a liquid composition in contact with a surface comprising the steps of a) providing a composition comprising the polypeptide and at least two different amino acids; b) contacting the composition with the surface. Furthermore, the invention relates to medical devices comprising a composition comprising the polypeptide and at least two different amino acids.
    Type: Application
    Filed: January 29, 2021
    Publication date: February 9, 2023
    Applicant: Leukocare AG
    Inventors: Andreas Geissler, Kristina Kemter, Sabine Hauck, Maximilian Maarten Böckel
  • Patent number: 11564865
    Abstract: The present invention, inter alia, relates to a closed sterilized container comprising at least one carrier which is a stabilizer; and at least one biomolecule reversibly attached to the carrier, wherein said carrier partially or completely covers the attached biomolecules and wherein said at least one carrier is selected from the group consisting of (poly)peptides such as dipeptides or tripeptides, amino acids, polyalcohols, polyethyleneglycols, ionic liquids, compatible solutes, saponins and a mixture thereof. The invention also relates to methods for producing sterilized containers according to the invention and uses thereof.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: January 31, 2023
    Assignee: Leukocare AG
    Inventors: Jens Altrichter, Anja Breuer, Nicole Schaath, Julia Quathamer
  • Patent number: 11510871
    Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected fro
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: November 29, 2022
    Assignee: Leukocare AG
    Inventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
  • Publication number: 20220325250
    Abstract: The present invention relates to a method for preparing a composition comprising a viral vector, the method comprising the steps of a) providing viral vectors, (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is free or substantially free of Mg2+ or of any divalent cations and/or salts thereof; and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b). Furthermore, the invention relates to a composition obtained or obtainable by the method of the invention, and to a composition comprising a viral vector and the solution of step (b).
    Type: Application
    Filed: August 14, 2020
    Publication date: October 13, 2022
    Applicant: Leukocare AG
    Inventors: Eva Reinauer, Kristina Kemter, Jens Altrichter
  • Publication number: 20220202717
    Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).
    Type: Application
    Filed: October 21, 2021
    Publication date: June 30, 2022
    Applicant: Leukocare AG
    Inventors: Kristina Kemter, Martin Scholz
  • Patent number: 11166915
    Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: November 9, 2021
    Assignee: Leukocare AG
    Inventors: Kristina Kemter, Martin Scholz
  • Patent number: 11060068
    Abstract: The present invention relates to a method for stabilising viruses or bacteria, the method comprising embedding the viruses or bacteria in an aqueous solution, wherein the solution comprises: (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide and wherein the solution is free or substantially free of sugar(s), silanes and protein(s).
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: July 13, 2021
    Assignee: Leukocare AG
    Inventors: Martin Scholz, Jens Altrichter, Kristina Kemter
  • Patent number: 10588957
    Abstract: The present invention relates to a method for producing stabilised vaccines, the method comprising: (a) mixing antigens with a solution comprising: (i) chitosan; (ii) at least three different amino acids and/or at least one dipeptide or tripeptide; and (iii) a sugar; and (b) drying the mixture obtained in (a).
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: March 17, 2020
    Assignee: LEUKOCARE AG
    Inventors: Martin Scholz, Jens Altrichter, Kristina Kemter, Regina Scherliess, Hartwig Steckel
  • Patent number: 10421776
    Abstract: The present invention relates to a method for preventing the unfolding of a (poly)peptide during drying and/or inducing the (re-)folding of a (poly)peptide after drying, comprising the step of embedding the (poly)peptide in an aqueous solution, wherein the solution comprises (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide; and wherein the solution is free or substantially free of (a) sugar; and (b-i) protein; and/or (b-ii) denaturing compounds; and (c) silanes.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: September 24, 2019
    Assignee: Leukocare AG
    Inventors: Martin Scholz, Jens Altrichter, Kristina Kemter
  • Patent number: 10406271
    Abstract: The present invention relates to a method for filtering blood to produce plasma or serum and to a blood filter for the production of plasma or serum from a blood sample. The invention further relates to a kit comprising a blood filter for the production of plasma or serum from a blood sample and a syringe.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: September 10, 2019
    Assignee: Leukocare AG
    Inventors: Stefan Margraf, Martin Scholz
  • Publication number: 20190269618
    Abstract: The present invention relates to a method for preparing viral vector-based compositions wherein the viral vector-based particles present in the composition have a particle size distribution with a polydispersity index (PDI) of less than 0.5, the method comprising the steps: (a) providing replication-deficient viral vectors; (b) providing a solution comprising at least one sugar and at least three different excipients selected from hydrophilic and amphiphilic excipients, wherein the excipients are characterized by polar, aliphatic, aromatic, negatively charged, and/or positively charged functional groups, and wherein the solution is further characterized by an excipient-sugar ratio of at least 1:2 (w/w); and (c) mixing the replication deficient viral vectors of step (a) with the solution of step (b).
    Type: Application
    Filed: September 15, 2017
    Publication date: September 5, 2019
    Applicant: Leukocare AG
    Inventors: Kristina Kemter, Martin Scholz
  • Publication number: 20190256551
    Abstract: The present invention relates to a method of producing a liquid biopharmaceutical drug product, comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a liquid biopharmaceutical drug product, said second phase comprising at least one processing step selected from (b1) re-buffering, (b2) freezing, (b3) thawing, and (b
    Type: Application
    Filed: September 15, 2017
    Publication date: August 22, 2019
    Applicant: Leukocare AG
    Inventors: Kristina Kemter, Martin Scholz, Jens Altrichter, Thomas Kriehuber
  • Publication number: 20190216925
    Abstract: The present invention relates to a method of producing a biopharmaceutical drug product comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a biopharmaceutical drug product, said second phase comprising at least one processing step selected from (b1) re-buffering, (b2) freezing, (b3) thawing, and (b4) filling; whe
    Type: Application
    Filed: September 15, 2017
    Publication date: July 18, 2019
    Applicant: Leukocare AG
    Inventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
  • Publication number: 20190216734
    Abstract: The present invention relates to a method of producing low viscous and highly concentrated biopharmaceutical drug products comprising a biomolecule of interest, the method comprising: (a) a first phase of preparing a drug substance of the biomolecule of interest, said first phase comprising at least one processing step selected from (a1) harvesting, (a2) purification, (a3) re-buffering, and (a4) enrichment, wherein said at least one processing step in this first phase is carried out in the presence of a composition comprising at least three amino acids, wherein the combination of said at least three amino acids provides at least one positively charged functional group, at least one anti-oxidative functional group, at least one osmolytic function, and at least one buffering function, and (b) a second phase of further processing the drug substance prepared in (a) to obtain a low viscous and highly concentrated biopharmaceutical drug product, said second phase comprising at least one processing step selected fro
    Type: Application
    Filed: September 15, 2017
    Publication date: July 18, 2019
    Applicant: Leukocare AG
    Inventors: Martin Scholz, Kristina Kemter, Jens Altrichter, Thomas Kriehuber
  • Patent number: 9926383
    Abstract: The present invention relates to a method of producing a solid coated carrier carrying biological material. Furthermore, the invention relates to a solid coated carrier to which biological material is attached and uses of the solid coated carrier for the preparation of a medical product. Moreover, the invention provides a method for the contacting, filtration or cleaning of blood, lymph or liquor cerebrospinalis of a patient, a method for the diagnosis of a disease and a diagnostic composition.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 27, 2018
    Assignee: LEUKOCARE AG
    Inventors: Stefan Margraf, Martin Scholz
  • Patent number: 9797895
    Abstract: The present invention relates to the use of a composition comprising (a) at least three different amino acids, (b) at least two different amino acids and a saponin or (c) at least one dipeptide or tripeptide for stabilizing biomolecules immobilized on a solid carrier. The invention furthermore relates to a method for producing stabilized biomolecules, comprising embedding the biomolecules in the composition according to the invention and a method of producing a solid carrier having biomolecules attached thereto. The invention furthermore relates to a solid carrier producible or produced by the method of the invention and a method of diagnosing a disease using the carrier of the invention.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 24, 2017
    Assignee: Leukocare AG
    Inventors: Stefan Margraf, Anja Breuer, Martin Scholz, Jens Altrichter
  • Patent number: 9321848
    Abstract: The present invention relates to a method for preventing the unfolding of a (poly)peptide during drying and/or inducing the (re-)folding of a (poly)peptide after drying, comprising the step of embedding the (poly)peptide in an aqueous solution, wherein the solution comprises (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide; and wherein the solution is free or substantially free of (a) sugar; and (b-i) protein; and/or (b-ii) denaturing compounds; and (c) silanes.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 26, 2016
    Assignee: LEUKOCARE AG
    Inventors: Martin Scholz, Jens Altrichter, Kristina Kemter
  • Publication number: 20140134699
    Abstract: The present invention relates to a method for stabilising viruses or bacteria, the method comprising embedding the viruses or bacteria in an aqueous solution, wherein the solution comprises: (i) at least three different amino acids; or (ii) at least one dipeptide or tripeptide and wherein the solution is free or substantially free of sugar(s), silanes and protein(s).
    Type: Application
    Filed: June 28, 2012
    Publication date: May 15, 2014
    Applicant: Leukocare AG
    Inventors: Martin Scholz, Jens Altrichter, Kristina Kemter